Got my $60 cylinder alignment tool, so with little or no trepidation I dove in. First off, yes, I am a kitchen counter “gunsmith”. The big hammer and punch is for Guy. 😁 Better lighting, cooler, and a great stereo to drown out my cursing. 😁
Got my 19-3 as a test model, since I wouldn’t have to take the the ejector rod off and it’s a little rough.



All went well. The tool actually worked very well on the M19-3. It’s as smooth as silk now. My M&P was perfect, according to the tool.
Cleaned everything up and put it back together. I guess it’s just a “tall pin”. It barely touches the cylinder in a couple of spots. I can live with it. It is a beautiful revolver.
Thanks to all for the help and information on this project, it’s greatly appreciated.